Underground conduit for steam-pipes.



s. W. HERSEY.

UNDERGROUND UONDUIT FOB. STEAM PIPES.

APPLICATION FILED FEB.15, 1909.

921 ,399w Patented May 11,1909

14 a F 5H G Q/ I 571? FM i Hi 0 mmmmnflu /t mnmuiumn X Y I fl ling?Wiine 8866 [n we n 7602". m w MW My WM J W UN'DE ALGRQUE'D C 9N1??? Toall" a m @i may come/m:

Be it known that K SETH Vi. lri'iszzssci', 0i"

Pmr'thnici, in the county of Gumbel-hind,

State of Maine have invented certain new ;D ci'zi ebjeci of theinVQllfiOll is to ploiid suiiabie rciier support for the pipes withinthe conduit Which-hwy be cheapiy made and instailed and which 'WiH havesufficient streng zh to (may steam pipea 01" Oifiiilfil'y 11"; weight.

A warding i0 winnmn praci'ia-e at i'iw presvni time steam pipes arecarried undergmumi in cc-ndui'tsvmzidc up of split sec- Vinifiedeui'ihenware pipe ihe 2-9 iUWQY haii being first hiiii, the steam pipessuppoiied tharein by means of 2111101 hemh1g1; placed at suii'zihhsintervals. The top s :iiom than pin on their edges "wing cemented. tothe edges of the lower siiiions to form whim: 'iight joints and fiimiiythe WilOiG siufi 'eai with asbestos waste. or other nan-conductingmaterial.

The l'olifir bearings for supporting; the, steam pipes have sometimebeen minimised 1 Wide suppm'ting plates of cast imn c01 aiming ms mini:15 ms-Bible tr innei' sur- 0;? the pipe section but awing in the ct thvfneither th casting of the piaie 01' surface of the pipe were 'i'lcaithe plate liable to 1m :1

iriiiy cyiii hamat imi' three points 11516 with this unequal i iifiWeighi of time siemz'i ii s "was Was a tmieiiehw in pry-chm 11 11 in ajest hi my praseni' L "roller hearing" which 1 Me 511 I d ('ilGC'ii' onthe inside ml cnndui mil have a unii h iing the COXNIiiIii? fifiill andw as herei lSi'li i 35TH ii'. HEREBY, OF PORTLAND, M iilh' i the iUWQX.half 0'! a suction 0f \Viii. ha i'uiim' support in phweu in the waivingI" (21km un w a: of Fi view- {A sh" poi-Lin phsitiun.

The spiitl pipe 886M011 PL in; 51.

the usual concrete ij'osiiuiaiion hid in thi imiiom of i'h c- (iii-chipipe semion is in Lhu pmc 5 ilmand. iiwfm'o it is hmi'mai, pairs nhiyformed of a casting h. gluOYE5 which 1112:}; (:m'rw fl'iiLi'l thegrooves a in ih plate C conforms \aiiiii grimves are 5306 Of th s. condiirmly (0 it by 21 bed i' other suitabl c mntiiizm. h in in I ed betweenthe (J 1- i This 1-011" F h re SilOWj IROiUuGii on a shah H whiwh s 89the HPI' iXiIS (1, the 1mm being" 0 grail with the pixie C. The 1-01; i

being: thus secured. to the conduit hem" the WEB 'he 3 3 3, Hi1 mifurmefi by hi Iii mm also h the 1' phase an"? 3; "e enis 1 finance ofthe .l

v. and i grooves. 1 Q1805 ihv m hna V V mess: 01 the QRQilDg W11! hesuihcieni; w m: ii in: adhere t0 the hmiy 0i wmmi 6 herein descriher iunie section of earthenware having grooves in the inner surface thereofia, ease plate resting oethe scored portion of the pipe, rollers carriedby said plate a body 421? cementitious material interposed between thebase plate and the pipe section,

2. The herein described underground. oonduit for steam pipes comprisinga split pipe section of earthenware having dovetailed grooves scored inthe inner surface thereof, a base plate resting on th scored portion ofthe pipe, rollers carried by saidplate body of oementilious material intosed. between the base plate and the pipe section.

8. The herein described underground cow zmesees

